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Desai PM, Truong T, Marathe S. Detailed accounts of segregation mechanisms and the evolution of pharmaceutical blend segregation analysis: A review. Int J Pharm 2024; 665:124739. [PMID: 39321901 DOI: 10.1016/j.ijpharm.2024.124739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 09/01/2024] [Accepted: 09/20/2024] [Indexed: 09/27/2024]
Abstract
Segregation refers to the separation of components in a powder mixture, resulting in potential issues related to concentration inhomogeneity. Any well-mixed blend that undergoes secondary processing is inherently susceptible to segregation which, if unmitigated, will lead to active compound concentration variance and poorer product quality. The consequences range from adverse financial impact to manufacturers with product failures to the detrimental health effects to product users. Hence, the topic of segregation is of paramount importance to the industry, requiring it to be dissected and scrutinized intensively by scientists worldwide. This review provides a well-crafted theoretical framework designed to understand the common segregation mechanisms that manufacturing facilities face, followed by the efforts to gauge the degree of segregation. To minimize segregation in blends, various approaches - mathematical modeling, empirical experiments, and empirical methods with modeling consideration - have been utilized in segregation research and are covered in this review. The past segregation studies from many fields are discussed, with particular emphasis on pharmaceuticals. The review also discusses the evolution and advances in mixing technology and storage systems implemented by the pharmaceutical industry to prevent segregation. In the conclusion, the authors articulated their perspectives on potential mitigation measures, including suggestions for improvements and future studies.
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Affiliation(s)
- Parind M Desai
- Drug Product Development, Medicine Development & Supply, GSK R&D, Collegeville, PA, USA.
| | - Triet Truong
- Drug Product Development, Medicine Development & Supply, GSK R&D, Collegeville, PA, USA
| | - Sushrut Marathe
- Drug Product Development, Medicine Development & Supply, GSK R&D, Collegeville, PA, USA
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2
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Naranjo Gómez LN, Matsunami K, Van Liedekerke P, De Beer T, Kumar A. Investigating screw-agitator speed ratio impact on feeding performance in pharmaceutical manufacturing using discrete element method. Sci Rep 2024; 14:21234. [PMID: 39261620 PMCID: PMC11390932 DOI: 10.1038/s41598-024-72288-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 09/05/2024] [Indexed: 09/13/2024] Open
Abstract
In continuous powder handling processes, precise and consistent feeding is crucial for ensuring the quality of the final product. The intermixing effect caused by agitators, which alters the powder's bulk density, flow rate, and flow patterns, plays a significant role in this process, yet it is often overlooked. This study combines discrete element method (DEM) modeling and experiments using a commercial-scale feeder to propose a Digital Twin (DT) framework. The DEM model accurately captures key flow features, such as bypass trajectories, stagnant zones, and preferential flow patterns, while providing quantitative predictions for the feed factor and zones prone to material accumulation. Scenario analysis is performed to identify the most favorable operating ranges of the screw-agitator ratio and screw speed, considering the cohesive properties of the powder. The study demonstrates that powders with poor flow characteristics require tighter operational constraints, as the screw-agitator ratio is susceptible to variations in mass feed rate. This contribution highlights the importance of selecting an appropriate screw-agitator ratio instead of maintaining a fixed value. Properly choosing this ratio helps determine an optimal operation window, which aims to achieve a minimum agitation level needed to induce unhindered flow and reduce variability in the mass flow rate.
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Affiliation(s)
- Luz Nadiezda Naranjo Gómez
- Pharmaceutical Engineering Research Group (PharmaEng), Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
- Laboratory of Pharmaceutical Process Analytical Technology (LPPAT), Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Kensaku Matsunami
- Pharmaceutical Engineering Research Group (PharmaEng), Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Paul Van Liedekerke
- Department of Data Analysis and Mathematical modeling, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Thomas De Beer
- Laboratory of Pharmaceutical Process Analytical Technology (LPPAT), Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Ashish Kumar
- Pharmaceutical Engineering Research Group (PharmaEng), Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium.
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3
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Campanelli-Morais Y, Silva CHF, Dantas MRDN, Sabry DA, Sassaki GL, Moreira SMG, Rocha HAO. A Blend Consisting of Agaran from Seaweed Gracilaria birdiae and Chromium Picolinate Is a Better Antioxidant Agent than These Two Compounds Alone. Mar Drugs 2023; 21:388. [PMID: 37504919 PMCID: PMC10381178 DOI: 10.3390/md21070388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
A blend refers to the combination of two or more components to achieve properties that are superior to those found in the individual products used for their production. Gracilaria birdiae agaran (SPGb) and chromium picolinate (ChrPic) are both antioxidant agents. However, there is no documentation of blends that incorporate agarans and ChrPic. Hence, the objective of this study was to generate blends containing SPGb and ChrPic that exhibit enhanced antioxidant activity compared to SPGb or ChrPic alone. ChrPic was commercially acquired, while SPGb was extracted from the seaweed. Five blends (B1; B2; B3; B4; B5) were produced, and tests indicated B5 as the best antioxidant blend. B5 was not cytotoxic or genotoxic. H2O2 (0.6 mM) induced toxicity in fibroblasts (3T3), and this effect was abolished by B5 (0.05 mg·mL-1); neither ChrPic nor SPGb showed this effect. The cells also showed no signs of toxicity when exposed to H2O2 after being incubated with B5 and ChrPic for 24 h. In another experiment, cells were incubated with H2O2 and later exposed to SPGb, ChrPic, or B5. Again, SPGb was not effective, while cells exposed to ChrPic and B5 reduced MTT by 100%. The data demonstrated that B5 has activity superior to SPGb and ChrPic and points to B5 as a product to be used in future in vivo tests to confirm its antioxidant action. It may also be indicated as a possible nutraceutical agent.
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Affiliation(s)
- Yara Campanelli-Morais
- Programa de Pós-Graduação em Bioquimica e Biologia Molecular, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
| | - Cynthia Haynara Ferreira Silva
- Programa de Pós-Graduação em Bioquimica e Biologia Molecular, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
| | - Marina Rocha do Nascimento Dantas
- Programa de Pós-Graduação em Bioquimica e Biologia Molecular, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
| | - Diego Araujo Sabry
- Dapartamento de Bioquímica, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
| | - Guilherme Lanzi Sassaki
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, Brazil
| | - Susana Margarida Gomes Moreira
- Programa de Pós-Graduação em Bioquimica e Biologia Molecular, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
- Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
| | - Hugo Alexandre Oliveira Rocha
- Programa de Pós-Graduação em Bioquimica e Biologia Molecular, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
- Dapartamento de Bioquímica, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
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4
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Li Z, Peng WH, Liu WJ, Yang LY, Naeem A, Feng Y, Ming LS, Zhu WF. Advances in numerical simulation of unit operations for tablet preparation. Int J Pharm 2023; 634:122638. [PMID: 36702386 DOI: 10.1016/j.ijpharm.2023.122638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/25/2023]
Abstract
Recently, there has been an increase in the use of numerical simulation technology in pharmaceutical preparation processes. Numerical simulation can contribute to a better understanding of processes, reduce experimental costs, optimize preparation processes, and improve product quality. The intermediate material of most dosage forms is powder or granules, especially in the case of solid preparations. The macroscopic behavior of particle materials is controlled by the interactions of individual particles with each other and surrounding fluids. Therefore, it is very important to analyze and control the microscopic details of the preparation process for solid preparations. Since tablets are one of the most widely used oral solid preparations, and the preparation process is relatively complex and involves numerous units of operation, it is especially important to analyze and control the tablet production process. The present paper discusses recent advances in numerical simulation technology for the preparation of tablets, including drying, mixing, granulation, tableting, and coating. It covers computational fluid dynamics (CFD), discrete element method (DEM), population balance model (PBM), finite element method (FEM), Lattice-Boltzmann model (LBM), and Monte Carlo model (MC). The application and deficiencies of these models in tablet preparation unit operations are discussed. Furthermore, the paper provides a systematic reference for the control and analysis of the tablet preparation process and provides insight into the future direction of numerical simulation technology in the pharmaceutical industry.
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Affiliation(s)
- Zhe Li
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China
| | - Wang-Hai Peng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China
| | - Wen-Jun Liu
- Jiangzhong Pharmaceutical Co. Ltd., Nanchang 330049, PR China
| | - Ling-Yu Yang
- Jiangzhong Pharmaceutical Co. Ltd., Nanchang 330049, PR China
| | - Abid Naeem
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China
| | - Yi Feng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China; Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China
| | - Liang-Shan Ming
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
| | - Wei-Feng Zhu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Institute for Advanced Study, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
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5
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Iyer J, Brunsteiner M, Modhave D, Paudel A. Role of Crystal Disorder and Mechanoactivation in Solid-State Stability of Pharmaceuticals. J Pharm Sci 2023; 112:1539-1565. [PMID: 36842482 DOI: 10.1016/j.xphs.2023.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/20/2023] [Accepted: 02/20/2023] [Indexed: 02/28/2023]
Abstract
Common energy-intensive processes applied in oral solid dosage development, such as milling, sieving, blending, compaction, etc. generate particles with surface and bulk crystal disorder. An intriguing aspect of the generated crystal disorder is its evolution and repercussion on the physical- and chemical stabilities of drugs. In this review, we firstly examine the existing literature on crystal disorder and its implications on solid-state stability of pharmaceuticals. Secondly, we discuss the key aspects related to the generation and evolution of crystal disorder, dynamics of the disordered/amorphous phase, analytical techniques to measure/quantify them, and approaches to model the disordering propensity from first principles. The main objective of this compilation is to provide special impetus to predict or model the chemical degradation(s) resulting from processing-induced manifestation in bulk solid manufacturing. Finally, a generic workflow is proposed that can be useful to investigate the relevance of crystal disorder on the degradation of pharmaceuticals during stability studies. The present review will cater to the requirements for developing physically- and chemically stable drugs, thereby enabling early and rational decision-making during candidate screening and in assessing degradation risks associated with formulations and processing.
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Affiliation(s)
- Jayant Iyer
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz, Austria
| | | | - Dattatray Modhave
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz, Austria
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz, Austria; Graz University of Technology, Institute of Process and Particle Engineering, Graz Austria.
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6
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Modelling the Evolution of Pore Structure during the Disintegration of Pharmaceutical Tablets. Pharmaceutics 2023; 15:pharmaceutics15020489. [PMID: 36839812 PMCID: PMC9962276 DOI: 10.3390/pharmaceutics15020489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Pharmaceutical tablet disintegration is a critical process for dissolving and enabling the absorption of the drug substance into the blood stream. The tablet disintegration process consists of multiple connected and interdependent mechanisms: liquid penetration, swelling, dissolution, and break-up. One key dependence is the dynamic change of the pore space in a tablet caused by the swelling of particles while the tablet takes up liquid. This study analysed the changes in the pore structure during disintegration by coupling the discrete element method (DEM) with a single-particle swelling model and experimental liquid penetration data from terahertz-pulsed imaging (TPI). The coupled model is demonstrated and validated for pure microcrystalline cellulose (MCC) tablets across three porosities (10, 15, and 22%) and MCC with three different concentrations of croscarmellose sodium (CCS) (2, 5, and 8% w/w). The model was validated using experimental tablet swelling from TPI. The model captured the difference in the swelling behaviour of tablets with different porosities and formulations well. Both the experimental and modelling results showed that the swelling was lowest (i.e., time to reach the maximum normalised swelling capacity) for tablets with the highest CCS concentration, cCCS = 8%. The simulations revealed that this was caused by the closure of the pores in both the wetted volume and dry volume of the tablet. The closure of the pores hinders the liquid from accessing other particles and slows down the overall swelling process. This study provides new insights into the changes in the pore space during disintegration, which is crucial to better understand the impact of porosity and formulations on the performance of tablets.
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7
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Sarkar C, Das B, Rawat VS, Wahlang JB, Nongpiur A, Tiewsoh I, Lyngdoh NM, Das D, Bidarolli M, Sony HT. Artificial Intelligence and Machine Learning Technology Driven Modern Drug Discovery and Development. Int J Mol Sci 2023; 24:ijms24032026. [PMID: 36768346 PMCID: PMC9916967 DOI: 10.3390/ijms24032026] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/22/2023] Open
Abstract
The discovery and advances of medicines may be considered as the ultimate relevant translational science effort that adds to human invulnerability and happiness. But advancing a fresh medication is a quite convoluted, costly, and protracted operation, normally costing USD ~2.6 billion and consuming a mean time span of 12 years. Methods to cut back expenditure and hasten new drug discovery have prompted an arduous and compelling brainstorming exercise in the pharmaceutical industry. The engagement of Artificial Intelligence (AI), including the deep-learning (DL) component in particular, has been facilitated by the employment of classified big data, in concert with strikingly reinforced computing prowess and cloud storage, across all fields. AI has energized computer-facilitated drug discovery. An unrestricted espousing of machine learning (ML), especially DL, in many scientific specialties, and the technological refinements in computing hardware and software, in concert with various aspects of the problem, sustain this progress. ML algorithms have been extensively engaged for computer-facilitated drug discovery. DL methods, such as artificial neural networks (ANNs) comprising multiple buried processing layers, have of late seen a resurgence due to their capability to power automatic attribute elicitations from the input data, coupled with their ability to obtain nonlinear input-output pertinencies. Such features of DL methods augment classical ML techniques which bank on human-contrived molecular descriptors. A major part of the early reluctance concerning utility of AI in pharmaceutical discovery has begun to melt, thereby advancing medicinal chemistry. AI, along with modern experimental technical knowledge, is anticipated to invigorate the quest for new and improved pharmaceuticals in an expeditious, economical, and increasingly compelling manner. DL-facilitated methods have just initiated kickstarting for some integral issues in drug discovery. Many technological advances, such as "message-passing paradigms", "spatial-symmetry-preserving networks", "hybrid de novo design", and other ingenious ML exemplars, will definitely come to be pervasively widespread and help dissect many of the biggest, and most intriguing inquiries. Open data allocation and model augmentation will exert a decisive hold during the progress of drug discovery employing AI. This review will address the impending utilizations of AI to refine and bolster the drug discovery operation.
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Affiliation(s)
- Chayna Sarkar
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India
| | - Biswadeep Das
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India
- Correspondence: ; Tel./Fax: +91-135-708-856-0009
| | - Vikram Singh Rawat
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India
| | - Julie Birdie Wahlang
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India
| | - Arvind Nongpiur
- Department of Psychiatry, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India
| | - Iadarilang Tiewsoh
- Department of Medicine, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India
| | - Nari M. Lyngdoh
- Department of Anesthesiology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India
| | - Debasmita Das
- Department of Computer Science and Engineering, Vellore Institute of Technology, Vellore Campus, Tiruvalam Road, Katpadi, Vellore 632014, Tamil Nadu, India
| | - Manjunath Bidarolli
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India
| | - Hannah Theresa Sony
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India
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8
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Numerical simulation model of gas–liquid–solid flows with gas–liquid free surface and solid-particle flows. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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9
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Assessing Residence Time Distributions and Hold-up Mass in Continuous Powder Blending using Discrete Element Method. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Digital twin of a continuous direct compression line for drug product and process design using a hybrid flowsheet modelling approach. Int J Pharm 2022; 628:122336. [DOI: 10.1016/j.ijpharm.2022.122336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
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11
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Zhang X, Tahmasebi P. Investigation of particle shape and ambient fluid on sandpiles using a coupled micro-geomechanical model. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Lubbe R, Xu WJ, Zhou Q, Cheng H. Bayesian calibration of GPU–based DEM meso-mechanics Part I: Parallelization of RVEs. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Investigating the effects of material properties on the mixing dynamics of cohesive particles in a twin screw mixer using a discrete element method approach. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Zhang X, Li Z, Tai P, Zeng Q, Bai Q. Numerical Investigation of Triaxial Shear Behaviors of Cemented Sands with Different Sampling Conditions Using Discrete Element Method. MATERIALS 2022; 15:ma15093337. [PMID: 35591671 PMCID: PMC9103142 DOI: 10.3390/ma15093337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 01/27/2023]
Abstract
In cemented sand, the influences of the sampling factors (i.e., the curing time, cement–sand ratio, and initial void ratio) on the triaxial shear behavior were investigated using discrete element method. Cemented sand samples with different initial conditions were prepared and subjected to the consolidated drained triaxial shearing test. In the simulations, the peak strength, residual strength, and pre-peak stiffness of cemented sand were enhanced by increasing the curing time and cement–sand ratio, and the enhancements could be explained by the increases in bond strength and bond number. Resulting from the increases of these two sampling factors, bond breakage emerged at a greater axial strain but lower intensity. However, some uncommon phenomena were generated; that is, the contractive but strain-softening response occurred in the sample with a curing time of 3 days, and the shear band and the strain-hardening behavior coexisted in the sample with a cement–sand ratio of 1%. The peak strength and pre-peak stiffness were also enhanced by decreasing the initial void ratio, more distinctly than by increasing the curing time and cement–sand ratio. However, the residual strength, bond breakage, and failure pattern with the persistence of shear band were insensitive to this change.
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Affiliation(s)
- Xuqun Zhang
- Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510080, China;
| | - Zhaofeng Li
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China; (P.T.); (Q.Z.); (Q.B.)
- Correspondence: ; Tel.: +86-132-4293-6466
| | - Pei Tai
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China; (P.T.); (Q.Z.); (Q.B.)
| | - Qing Zeng
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China; (P.T.); (Q.Z.); (Q.B.)
| | - Qishan Bai
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China; (P.T.); (Q.Z.); (Q.B.)
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15
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A perspective on calibration and application of DEM models for simulation of industrial bulk powder processes. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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A critical review on granulation of pharmaceuticals and excipients: Principle, analysis and typical applications. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Chen P, Ansari MJ, Bokov D, Suksatan W, Rahman ML, Sarjadi MS. A review on key aspects of wet granulation process for continuous pharmaceutical manufacturing of solid dosage oral formulations. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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18
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Chen F, Xia Y, Klinger JL, Chen Q. A set of hysteretic nonlinear contact models for DEM: Theory, formulation, and application for lignocellulosic biomass. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.117100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Russell A, Strong J, Garner S, Ketterhagen W, Long M, Capece M. Direct Compaction Drug Product Process Modeling. AAPS PharmSciTech 2022; 23:67. [PMID: 35102457 PMCID: PMC8816834 DOI: 10.1208/s12249-021-02206-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/01/2021] [Accepted: 12/21/2021] [Indexed: 11/30/2022] Open
Abstract
Most challenges during the development of solid dosage forms are related to the impact of any variations in raw material properties, batch size, or equipment scales on the product quality and the control of the manufacturing process. With the ever pertinent restrictions on time and resource availability versus heightened expectations to develop, optimize, and troubleshoot manufacturing processes, targeted and robust science-based process modeling platforms are essential. This review focuses on the modeling of unit operations and practices involved in batch manufacturing of solid dosage forms by direct compaction. An effort is made to highlight the key advances in the past five years, and to propose potentially beneficial future study directions.
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Affiliation(s)
- Alexander Russell
- Operations Science & Technology, AbbVie, 67061, Ludwigshafen, Germany.
| | - John Strong
- R&D Drug Product Development, AbbVie, North Chicago, Illinois, 60064, USA
| | - Sean Garner
- R&D Drug Product Development, AbbVie, North Chicago, Illinois, 60064, USA
| | | | - Michelle Long
- Operations Science & Technology, AbbVie, North Chicago, Illinois, 60064, USA
| | - Maxx Capece
- R&D Drug Product Development, AbbVie, North Chicago, Illinois, 60064, USA
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Windows-Yule CRK, Herald MT, Nicuşan AL, Wiggins CS, Pratx G, Manger S, Odo AE, Leadbeater T, Pellico J, de Rosales RTM, Renaud A, Govender I, Carasik LB, Ruggles AE, Kokalova-Wheldon T, Seville JPK, Parker DJ. Recent advances in positron emission particle tracking: a comparative review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2022; 85:016101. [PMID: 34814127 DOI: 10.1088/1361-6633/ac3c4c] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
Positron emission particle tracking (PEPT) is a technique which allows the high-resolution, three-dimensional imaging of particulate and multiphase systems, including systems which are large, dense, and/or optically opaque, and thus difficult to study using other methodologies. In this work, we bring together researchers from the world's foremost PEPT facilities not only to give a balanced and detailed overview and review of the technique but, for the first time, provide a rigorous, direct, quantitative assessment of the relative strengths and weaknesses of all contemporary PEPT methodologies. We provide detailed explanations of the methodologies explored, including also interactive code examples allowing the reader to actively explore, edit and apply the algorithms discussed. The suite of benchmarking tests performed and described within the document is made available in an open-source repository for future researchers.
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Affiliation(s)
- C R K Windows-Yule
- School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - M T Herald
- School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - A L Nicuşan
- School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - C S Wiggins
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Box 843015, Richmond, Virginia 23284, United States of America
- Department of Physics and Astronomy, University of Tennessee, Knoxville, 1408 Circle Drive, Knoxville, TN 37996, United States of America
| | - G Pratx
- Department of Radiation Oncology, Division of Medical Physics, Stanford University School of Medicine, Stanford University, Stanford, CA, United States of America
- Molecular Imaging Program at Stanford (MIPS), School of Medicine, Stanford University, Stanford, CA, United States of America
| | - S Manger
- School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - A E Odo
- Department of Physics, Federal University Oye-Ekiti, Nigeria
- Department of Physics, University of Cape Town, Rondebosch 7701, South Africa
| | - T Leadbeater
- Department of Physics, University of Cape Town, Rondebosch 7701, South Africa
| | - J Pellico
- School of Biomedical Engineering & Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, United Kingdom
| | - R T M de Rosales
- School of Biomedical Engineering & Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, United Kingdom
| | - A Renaud
- School of Mathematics, The University of Edinburgh, Old College, South Bridge, Edinburgh EH8 9YL, United Kingdom
| | - I Govender
- Mintek, P/Bag X3015, Ranburg, Gauteng 2121, South Africa
- Centre for Minerals Research, University of Cape Town, P/Bag Rondebosch 7701, South Africa
- School of Engineering, University of KwaZulu Natal, Glenwood 4041, South Africa
| | - L B Carasik
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Box 843015, Richmond, Virginia 23284, United States of America
| | - A E Ruggles
- Department of Nuclear Engineering, University of Tennessee, Knoxville, 1412 Circle Drive, Knoxville, TN 37996, United States of America
| | - Tz Kokalova-Wheldon
- School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - J P K Seville
- School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - D J Parker
- School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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21
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Numerical investigation of flow and energy dissipation for granular materials in moving bed heat exchangers based on μ(I) theory. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Load-Balancing Strategies in Discrete Element Method Simulations. Processes (Basel) 2021. [DOI: 10.3390/pr10010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this research, we investigate the influence of a load-balancing strategy and parametrization on the speed-up of discrete element method simulations using Lethe-DEM. Lethe-DEM is an open-source DEM code which uses a cell-based load-balancing strategy. We compare the computational performance of different cell-weighing strategies based on the number of particles per cell (linear and quadratic). We observe two minimums for particle to cell weights (at 3, 40 for quadratic, and 15, 50 for linear) in both linear and quadratic strategies. The first and second minimums are attributed to the suitable distribution of cell-based and particle-based functions, respectively. We use four benchmark simulations (packing, rotating drum, silo, and V blender) to investigate the computational performances of different load-balancing schemes (namely, single-step, frequent and dynamic). These benchmarks are chosen to demonstrate different scenarios that may occur in a DEM simulation. In a large-scale rotating drum simulation, which shows the systems in which particles occupy a constant region after reaching steady-state, single-step load-balancing shows the best performance. In a silo and V blender, where particles move in one direction or have a reciprocating motion, frequent and dynamic schemes are preferred. We propose an automatic load-balancing scheme (dynamic) that finds the best load-balancing steps according to the imbalance of computational load between the processes. Furthermore, we show the high computational performance of Lethe-DEM in the simulation of the packing of 108 particles on 4800 processes. We show that simulations with optimum load-balancing need ≈40% less time compared to the simulations with no load-balancing.
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Shekhar S, Amini N, Morton DAV, Hapgood KP, Russell A. Highlighting DEM's Potential to Gauge Mechanistic Attributes of MUPS Tablet and Capsule Formulations. AAPS PharmSciTech 2021; 22:271. [PMID: 34766218 DOI: 10.1208/s12249-021-02120-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/13/2021] [Indexed: 11/30/2022] Open
Abstract
Simulation of pharmaceutical unit operations by the discrete element method (DEM) has elevated our understanding of the impact of single-particle interactions on themselves, and on the entire tablets/powder. Studies in the past have shown how this knowledge helps to mitigate/solve multiple challenges during conventional formulation and process development/modernization/troubleshooting, with minimal use of active drug material. This communication adds to this- highlighting the tool's potential for a rapid preliminary assessment of the mechanistic attributes of multiple unit particle system (MUPS) based tablet and capsule drug products.
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24
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Stevenson CA, Monroe JE, Norris CG, Roginski AR, Beaudoin SP. The effects of surface and particle properties on van der Waals (vdW) adhesion quantified by the enhanced centrifuge method. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.07.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Sansare S, Aziz H, Sen K, Patel S, Chaudhuri B. Computational Modeling of Fluidized Beds with a Focus on Pharmaceutical Applications: A Review. J Pharm Sci 2021; 111:1110-1125. [PMID: 34555391 DOI: 10.1016/j.xphs.2021.09.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 11/29/2022]
Abstract
The fluidized bed is an essential and standard equipment in the field of process development. It has a wide application in various areas and has been extensively studied. This review paper aims to discuss computational modeling of a fluidized bed with a focus on pharmaceutical applications. Eulerian, Lagrangian, and combined Eulerian-Lagrangian models have been studied for fluid bed applications with the rise of modeling capabilities. Such models assist in optimizing the process parameters and expedite the process development cycle. This paper discusses the background of modeling and then summarizes research papers relevant to pharmaceutical unit operations.
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Affiliation(s)
- Sameera Sansare
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Hossain Aziz
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT 06269, USA
| | - Koyel Sen
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Shivangi Patel
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT 06269, USA
| | - Bodhisattwa Chaudhuri
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA; Institute of Material Sciences, University of Connecticut, Storrs, CT 06269, USA; Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA.
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26
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Cabiscol R, Finke JH, Kwade A. A bi-directional DEM-PBM coupling to evaluate chipping and abrasion of pharmaceutical tablets. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Process Modeling and Simulation of Tableting-An Agent-Based Simulation Methodology for Direct Compression. Pharmaceutics 2021; 13:pharmaceutics13070996. [PMID: 34209261 PMCID: PMC8308958 DOI: 10.3390/pharmaceutics13070996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/10/2021] [Accepted: 06/22/2021] [Indexed: 11/17/2022] Open
Abstract
In pharmaceutical manufacturing, the utmost aim is reliably producing high quality products. Simulation approaches allow virtual experiments of processes in the planning phase and the implementation of digital twins in operation. The industrial processing of active pharmaceutical ingredients (APIs) into tablets requires the combination of discrete and continuous sub-processes with complex interdependencies regarding the material structures and characteristics. The API and excipients are mixed, granulated if required, and subsequently tableted. Thereby, the structure as well as the properties of the intermediate and final product are influenced by the raw materials, the parametrized processes and environmental conditions, which are subject to certain fluctuations. In this study, for the first time, an agent-based simulation model is presented, which enables the prediction, tracking, and tracing of resulting structures and properties of the intermediates of an industrial tableting process. Therefore, the methodology for the identification and development of product and process agents in an agent-based simulation is shown. Implemented physical models describe the impact of process parameters on material structures. The tablet production with a pilot scale rotary press is experimentally characterized to provide calibration and validation data. Finally, the simulation results, predicting the final structures, are compared to the experimental data.
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Ketterhagen WR, Larson J, Spence K, Baird JA. Predictive Approach to Understand and Eliminate Tablet Breakage During Film Coating. AAPS PharmSciTech 2021; 22:178. [PMID: 34128124 DOI: 10.1208/s12249-021-02061-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/19/2021] [Indexed: 11/30/2022] Open
Abstract
Pharmaceutical tablets can be susceptible to damage such as edge chipping or erosion of the core during the tablet coating process. The intersection of certain process parameters, equipment design, and tablet properties may induce more significant tablet damage such as complete tablet fracture. In this work, a hybrid predictive approach was developed using discrete element method (DEM) modeling and lab-based tablet impact experiments to identify conditions that may lead to tablet breakage events. The approach was extended to examine potential modifications to the coating equipment and process conditions in silico to mitigate the likelihood of tablet breakage during future batches. The approach is shown to enhance process understanding, identify optimal process conditions within development constraints, and de-risk the manufacture of future tablet coating batches.
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29
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Hybrid multi-zonal compartment modeling for continuous powder blending processes. Int J Pharm 2021; 602:120643. [PMID: 33901598 DOI: 10.1016/j.ijpharm.2021.120643] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/03/2021] [Accepted: 04/21/2021] [Indexed: 02/02/2023]
Abstract
To modernize drug manufacturing, the pharmaceutical industry has been moving towards implementing emerging technologies to enhance manufacturing robustness and process reliability for production of regulation compliant drug products. Although different science and risk based technologies, like Quality-by-Design, have been used to illustrate their potential, there still exist some underlying obstacles. Specifically, for the production of oral solid drug products, an in-depth process understanding, and predictive modeling of powder mixing in continuous powder blenders is one such major obstacle and originates from the current limitations of the experimental and modeling approaches. Though first principle based discrete element modeling (DEM) approach can address the above issues, it can get very computationally intensive which limits its applications for predictive modeling. In the proposed work, we aim to address this limitation using a multi-zonal compartment modeling approach, which is constructed from DEM. The approach provides a computationally efficient and mechanistically informed hybrid model. The application of the proposed approach is first demonstrated for a periodic section of the blender, followed by its extension for the entire continuous powder blender and the obtained model predictions are validated. The proposed approach provides an overall assessment of powder mixing along axial and radial directions, which is an important requirement for the quantification of blend uniformity. Given the low computational cost, the developed model can further be integrated within the predictive flowsheet model of the manufacturing line.
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30
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High-throughput blend segregation evaluation using automated powder dispensing technology. Eur J Pharm Sci 2021; 159:105702. [PMID: 33429045 DOI: 10.1016/j.ejps.2021.105702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/13/2020] [Accepted: 01/06/2021] [Indexed: 11/24/2022]
Abstract
Due to the complexity in the interactions of variables and mechanisms leading to blend segregation, quantifying the segregation propensity of an Active Pharmaceutical Ingredient (API) has been challenging. A high-throughput segregation risk prediction workflow for early drug product development has been developed based on the dispensing mechanism of automated powder dispensing technology. The workflow utilized liquid handling robots and high-performance liquid chromatography (HPLC) with a well-plate autosampler for sample preparation and analysis. Blends containing three different APIs of varying concentrations and particle sizes of different constituents were evaluated through this automated workflow. The workflow enabled segregation evaluation of different API blends in very small quantities (~7g) compared to other common segregation testers that consume hundreds of grams. Segregation patterns obtained were well explained with vibration induced percolation-based segregation phenomena. Segregation risk was translated quantitatively using relative standard deviation (RSD) calculations, and the results matched well with large-scale segregation studies. The applied approach increased the throughput, introduced a simple and clean walk-up method with minimized equipment space and API exposures to conduct segregation studies. Results obtained can provide insights about optimizing particle size distributions, as well as selecting appropriate formulation constituents and secondary processing steps in early drug product development when the amount of available API is very limited.
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31
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Xie C, You Y, Ma H, Zhao Y. Mechanism of inter-tablet coating variability: Investigation about the motion behavior of ellipsoidal tablets in a pan coater. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.10.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Paul D, Sanap G, Shenoy S, Kalyane D, Kalia K, Tekade RK. Artificial intelligence in drug discovery and development. Drug Discov Today 2021; 26:80-93. [PMID: 33099022 PMCID: PMC7577280 DOI: 10.1016/j.drudis.2020.10.010] [Citation(s) in RCA: 367] [Impact Index Per Article: 122.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 09/03/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023]
Abstract
Artificial intelligence-integrated drug discovery and development has accelerated the growth of the pharmaceutical sector, leading to a revolutionary change in the pharma industry. Here, we discuss areas of integration, tools, and techniques utilized in enforcing AI, ongoing challenges, and ways to overcome them.
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Affiliation(s)
- Debleena Paul
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India
| | - Gaurav Sanap
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India
| | - Snehal Shenoy
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India
| | - Dnyaneshwar Kalyane
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India
| | - Rakesh K Tekade
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar, 382355, Gujarat, India.
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33
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Danczyk M, Fullard L, Holland D. An investigation of collisions of liquid coated particles. EPJ WEB OF CONFERENCES 2021. [DOI: 10.1051/epjconf/202124908002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The presence of even small amounts of liquid between particles dramatically changes the dynamics of collisions. This study considers granular collisions between two particles coated with a thin layer of viscous liquid, such that the capillary number is high and viscous forces dominate. High-speed particle tracking velocimetry was used to experimentally study the collisions of two smooth spheres with and without liquid coatings. We then use these experiments to examine four theoretical models that describe the collisions. A key challenge when modelling viscous forces is that the force which is predicted as particles approach each other scales with the inverse of the distance, i.e. tends to infinity. Most existing models impose a limit to the viscous force. One recent model instead assumes a hard sphere collision. These fundamentally different approaches produce different rebound outcomes. A fair match between experiments and simulations was obtained when using the hard sphere collision model, but only if an empirically-fitted glass transition pressure model was used to describe the minimum approach distance.
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34
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Microstructure based simulation of the disintegration and dissolution of immediate release pharmaceutical tablets. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.08.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Gao Y, De Simone G, Koorapaty M. Calibration and verification of DEM parameters for the quantitative simulation of pharmaceutical powder compression process. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.09.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Zhan L, Peng C, Zhang B, Wu W. A surface mesh represented discrete element method (SMR-DEM) for particles of arbitrary shape. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.09.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Desai PM, Acharya S, Armstrong C, Wu EL, Zaidi SAM. Underpinning mechanistic understanding of the segregation phenomena of pharmaceutical blends using a near-infrared (NIR) spectrometer embedded segregation tester. Eur J Pharm Sci 2020; 154:105516. [PMID: 32814162 DOI: 10.1016/j.ejps.2020.105516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/04/2020] [Accepted: 08/15/2020] [Indexed: 10/23/2022]
Abstract
The segregation of an active pharmaceutical ingredient (API) within a powder blend is one of the major manufacturing obstacles in achieving content uniformity. Segregation can be due to differences in physicochemical properties of formulation components and/or perturbations experienced during secondary processing steps, such as granulation, fluidization, die-filling and compression. A near-infrared (NIR) spectrometer embedded segregation tester, which could mimic the external stimulations (vibration and fluidization) experienced by a blend in a manufacturing facility, was used to evaluate and predict blend segregation. Two different GlaxoSmithKline (GSK) product blends with variations in the API particle size and concentration were tested. Drug content was further measured at different locations along the powder bed by NIR to sketch the segregation profile and calculate the overall segregation intensity of each blend. The study indicated that the segregation potential was dependent on the particle sizes of API and excipients, as well as the type of stimulus applied (vibration vs fluidization). Drug concentration profiles obtained from this mode of analysis decoded the underlying segregation mechanisms (sieving, trajectory and air elutriation) easily. The employed NIR-based segregation tester proved to be a useful small-scale predictive tool to evaluate and rank the segregation risk of the studied pharmaceutical blends.
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Affiliation(s)
- Parind M Desai
- Process Engineering & Analytics, Pharmaceutical Development, GlaxoSmithKline (GSK) R&D, Collegeville, PA, USA.
| | - Shreyas Acharya
- Process Engineering & Analytics, Pharmaceutical Development, GlaxoSmithKline (GSK) R&D, Collegeville, PA, USA
| | - Cameron Armstrong
- Process Engineering & Analytics, Pharmaceutical Development, GlaxoSmithKline (GSK) R&D, Collegeville, PA, USA
| | - Eva L Wu
- Analytical Platforms and Platform Modernization, CMC Analytical, GlaxoSmithKline (GSK) R&D, Collegeville, PA, USA
| | - Syed A M Zaidi
- Analytical Platforms and Platform Modernization, CMC Analytical, GlaxoSmithKline (GSK) R&D, Collegeville, PA, USA
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Pezo L, Pezo M, Banjac V, Jovanović AP, Krulj J, Kojić J, Kojić P. Blending performance of the coupled Ross static mixer and vertical feed mixer - Discrete element model approach. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.07.104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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39
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Impact of Insoluble Separation Layer Mechanical Properties on Disintegration and Dissolution Kinetics of Multilayer Tablets. Pharmaceutics 2020; 12:pharmaceutics12060495. [PMID: 32485803 PMCID: PMC7356680 DOI: 10.3390/pharmaceutics12060495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/14/2020] [Accepted: 05/28/2020] [Indexed: 11/23/2022] Open
Abstract
Dissolution and disintegration of solid dosage forms such as multiple-layer tablet with different active ingredients depend on formulation and properties used in the formulations, and it may sometimes result in counterintuitive release kinetics. In this manuscript, we investigate the behavior of combined acetylsalicylic acid and mefenamic acid bi- and triple-layer formulations. We show that the simulation model with a cellular automata predicted the impact of the inert layer between the different active ingredients on each drug release and provide a good agreement with the experimental results. Also, it is shown that the analysis based on the Noyes–Whitney equation in combination with a cellular automata-supported dissolution and disintegration numerical solutions explain the nature of the unexpected effects. We conclude that the proposed simulation approach is valuable to predict the influence of material attributes and process parameters on drug release from multicomponent and multiple-layer pharmaceutical tablets and to help us develop the drug product formulation.
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40
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Bhalode P, Ierapetritou M. Discrete element modeling for continuous powder feeding operation: Calibration and system analysis. Int J Pharm 2020; 585:119427. [PMID: 32473969 DOI: 10.1016/j.ijpharm.2020.119427] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/05/2020] [Accepted: 05/09/2020] [Indexed: 11/29/2022]
Abstract
Research emphases on extensive experimental studies and modeling efforts have been on the rise for the development of accurate predictive models of pharmaceutical unit operations and 'digital-twin' framework for continuous manufacturing lines. These exhaustive studies have been conducted at different process conditions to acquire comprehensive knowledge of effects of process parameters on the overall process dynamics. However, there still lacks a detailed understanding of material property effects of pharmaceutical powders on process operation. To address this issue, a discrete element modeling (DEM) approach combined with material calibration is applied for simulation of feeder unit to obtain particle-level insight into effects of material properties on feeder performance with focus on particle flow and powder mixing within the feeder unit. Bulk calibration is implemented to accurately represent powder material properties within the DEM framework. Different refill situations are simulated using DEM to observe powder mixing, measured at the outlet. Feeder DEM simulations are further applied to understand correlations of material properties on feeder operation. These studies provide a detailed physical insight and particle-scale information into the powder mechanics during powder feeding operation.
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Affiliation(s)
- Pooja Bhalode
- Department of Chemical and Biochemical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Marianthi Ierapetritou
- Department of Chemical and Biochemical Engineering, Rutgers University, Piscataway, NJ 08854, USA.
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41
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A Coarse Grained Model for Viscoelastic Solids in Discrete Multiphysics Simulations. CHEMENGINEERING 2020. [DOI: 10.3390/chemengineering4020030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Viscoelastic bonds intended for Discrete Multiphysics (DMP) models are developed to allow the study of viscoelastic particles with arbitrary shape and mechanical inhomogeneity that are relevant to the pharmaceutical sector and that have not been addressed by the Discrete Element Method (DEM). The model is applied to encapsulate particles with a soft outer shell due, for example, to the partial ingress of moisture. This was validated by the simulation of spherical homogeneous linear elastic and viscoelastic particles. The method is based on forming a particle from an assembly of beads connected by springs or springs and dashpots that allow the sub-surface stress fields to be computed, and hence an accurate description of the gross deformation. It is computationally more expensive than DEM, but could be used to define more effective interaction laws.
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42
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High shear seeded granulation: Its preparation mechanism, formulation, process, evaluation, and mathematical simulation. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.03.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hildebrandt C, Gopireddy SR, Scherließ R, Urbanetz NA. A DEM approach to assess the influence of the paddle wheel shape on force feeding during pharmaceutical tableting. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2019.11.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vu TL, Nezamabadi S, Mora S. Compaction of elastic granular materials: inter-particles friction effects and plastic events. SOFT MATTER 2020; 16:679-687. [PMID: 31815275 DOI: 10.1039/c9sm01947b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The uni-axial compaction of granular materials made of elastic neo-Hookean particles is investigated in the quasi-static regime. Two-dimensional disk assemblies are simulated using the Finite Element model coupled with Contact Dynamics method for dealing both with finite deformations of the particles and contact interactions. Due to large deformations of the particles, the packing fraction of the system increases continuously during the compaction process, reaching values close to 1. The influence of the coefficient of friction between the particles on the macroscopic and micro-structural behaviors of the system is thoroughly discussed.
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Affiliation(s)
- Thi-Lo Vu
- Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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45
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Influence of mesoporous silica on powder flow and electrostatic properties on short and long term. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Yeom SB, Ha ES, Kim MS, Jeong SH, Hwang SJ, Choi DH. Application of the Discrete Element Method for Manufacturing Process Simulation in the Pharmaceutical Industry. Pharmaceutics 2019; 11:E414. [PMID: 31443327 PMCID: PMC6723742 DOI: 10.3390/pharmaceutics11080414] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 12/15/2022] Open
Abstract
Process simulation using mathematical modeling tools is becoming more common in the pharmaceutical industry. A mechanistic model is a mathematical modeling tool that can enhance process understanding, reduce experimentation cost and improve product quality. A commonly used mechanistic modeling approach for powder is the discrete element method (DEM). Most pharmaceutical materials have powder or granular material. Therefore, DEM might be widely applied in the pharmaceutical industry. This review focused on the basic elements of DEM and its implementations in pharmaceutical manufacturing simulation. Contact models and input parameters are essential elements in DEM simulation. Contact models computed contact forces acting on the particle-particle and particle-geometry interactions. Input parameters were divided into two types-material properties and interaction parameters. Various calibration methods were presented to define the interaction parameters of pharmaceutical materials. Several applications of DEM simulation in pharmaceutical manufacturing processes, such as milling, blending, granulation and coating, were categorized and summarized. Based on this review, DEM simulation might provide a systematic process understanding and process control to ensure the quality of a drug product.
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Affiliation(s)
- Su Bin Yeom
- Department of Pharmaceutical Engineering, Inje University, Gyeongnam 621-749, Korea
| | - Eun-Sol Ha
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, Korea
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, Korea.
| | | | - Sung-Joo Hwang
- College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
| | - Du Hyung Choi
- Department of Pharmaceutical Engineering, Inje University, Gyeongnam 621-749, Korea.
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Tanabe S, Gopireddy SR, Minami H, Ando S, Urbanetz NA, Scherließ R. Influence of particle size and blender size on blending performance of bi-component granular mixing: A DEM and experimental study. Eur J Pharm Sci 2019; 134:205-218. [PMID: 31034985 DOI: 10.1016/j.ejps.2019.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 04/16/2019] [Accepted: 04/25/2019] [Indexed: 10/26/2022]
Abstract
The effect of particle size enlargement and blender geometry down-scaling on the blend uniformity (BU) was evaluated by Discrete Element Method (DEM) to predict the blending performance of a binary granular mixture. Three 10 kg blending experiments differentiated by the physical properties specifically particle size were performed as reference for DEM simulations. The segregation behavior observed during the diffusion blending was common for all blends, while the sample BU, i.e., standard deviation of active ingredient content % was different among the three blends reflecting segregation due to the particle size differences between the components. Quantitative prediction of the sample BU probability density distribution in reality based on the DEM simulation results was successfully demonstrated. The average root mean square error normalized by the mean of the mean sample BU in the blends was 0.228. Beside the ratio of blender container to particle size, total number of particles in the blender and the number of particles in a sample were confirmed critical for the blending performance. These in-silico experiments through DEM simulations would help in setting a design space with respect to the particle size and in a broader sense with respect to the physical properties in general.
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Affiliation(s)
- Shuichi Tanabe
- Pharmaceutical Development, Daiichi Sankyo Europe GmbH, Pfaffenhofen 85276, Germany; Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd., Hiratsuka 2540014, Japan; Department of Pharmaceutics and Biopharmaceutics, Kiel University, Grasweg 9a, 24118 Kiel, Germany.
| | - Srikanth R Gopireddy
- Pharmaceutical Development, Daiichi Sankyo Europe GmbH, Pfaffenhofen 85276, Germany
| | - Hidemi Minami
- Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd., Hiratsuka 2540014, Japan
| | - Shuichi Ando
- Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd., Hiratsuka 2540014, Japan
| | - Nora A Urbanetz
- Pharmaceutical Development, Daiichi Sankyo Europe GmbH, Pfaffenhofen 85276, Germany
| | - Regina Scherließ
- Department of Pharmaceutics and Biopharmaceutics, Kiel University, Grasweg 9a, 24118 Kiel, Germany
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Scale-Up Strategy in Quality by Design Approach for Pharmaceutical Blending Process with Discrete Element Method Simulation. Pharmaceutics 2019; 11:pharmaceutics11060264. [PMID: 31174362 PMCID: PMC6632066 DOI: 10.3390/pharmaceutics11060264] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 12/24/2022] Open
Abstract
An approach combining quality by design (QbD) and the discrete element method (DEM) is proposed to establish an effective scale-up strategy for the blending process of an amlodipine formulation prepared by the direct compression method. Critical process parameters (CPPs) for intermediate critical quality attributes (IQAs) were identified using risk assessment (RA) in the QbD approach. A Box–Behnken design was applied to obtain the operating space for a laboratory-scale. A DEM model was developed by the input parameters for the amlodipine formulation; blending was simulated on a laboratory-scale V-blender (3 L) at optimal settings. The efficacy and reliability of the DEM model was validated through a comparison of simulation and experimental results. Change of operating space was evaluated using the validated DEM model when scaled-up to pilot-scale (10 L). Pilot-scale blending was simulated on a V-blender and double-cone blender at the optimal settings derived from the laboratory-scale operating space. Both pilot-scale simulation results suggest that blending time should be lower than the laboratory-scale optimized blending time to meet target values. These results confirm the change of operating space during the scale-up process. Therefore, this study suggests that a QbD-integrated DEM simulation can be a desirable approach for an effective scale-up strategy.
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Calibration of Discrete-Element-Method Parameters for Cohesive Materials Using Dynamic-Yield-Strength and Shear-Cell Experiments. Processes (Basel) 2019. [DOI: 10.3390/pr7050278] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study tested the effectiveness of using dynamic yield strength (DYS) and shear-cell experiments to calibrate the following discrete-element-method (DEM) parameters: surface energy, and the coefficients of sliding and rolling friction. These experiments were carried out on cohesive granules, and DEM models were developed for these experiment setups using the JKR cohesion contact model. Parameter-sensitivity analysis on the DYS model showed that the DYS results in the simulations were highly sensitive to surface energy and were also impacted by the values of the two friction coefficients. These results indicated that the DYS model could be used to calibrate the surface energy parameter once the friction coefficients were fixed. Shear-cell sensitivity analysis study found that the influence of surface energy on the critical-state shear value cannot be neglected. It was inferred that the shear-cell model has to be used together with the DYS model to identify the right set of friction parameters. Next, surface energy was calibrated using DYS simulations for a chosen set of friction parameters. Calibrations were successfully conducted for simulations involving experimentally sized particles, scaled-up particles, a different shear modulus, and a different set of friction parameters. In all these cases, the simulation DYS results were found to be linearly correlated with surface energy and were within 5% of the experimental DYS result. Shear-cell simulations were then used to compare calibrated surface-energy values for the scaled-up particles with the experimentally sized particles. Both the simulations resulted in similar critical-state shear values. Finally, it was demonstrated that a combination of DYS and shear-cell simulations could be used to compare two sets of friction parameters and their corresponding calibrated surface energy values to identify the set of parameters that better represent the flow behavior demonstrated by the experimental system.
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Investigation of powder flow within a pharmaceutical tablet press force feeder – A DEM approach. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.01.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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